#include <iostream>
using namespace std;

int func2(int x, int y)
{
	if (y == 0)
		throw "exception false";
	
	return x;
}

void func1()
{
	int a, b;
	cin >> a >> b;
	cout << func2(a, b) << endl;

}

int main()
{

	try
	{
		func1();
	}
	catch (const char* e)
	{
		cout << e << endl;
	}
	catch (...)
	{
		cout << "exception not clear" << endl;
	}
	return 0;
}